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Why is the majority of earth's fresh water not readily available for our use?A. it's in the atmosphereB. it's locked up in glaciers and ice capsC. it's in rivers far from major human population center
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How have turnips been selectively bred from field mustard? Answer correctly and honestly or I will report!
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Geneticists frequently use massive amounts of data that are organized for searching and stored in a single location called a
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Biology
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Which of the structures below are uv active and expected to absorb radiation between 200 and 400 nm?
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There are two main types of adrenergic receptors: the α and β- adrenoceptors. noradrenaline shows slight selectivity for the α receptor, whereas isoprenaline shows selectivity for the β ad
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Renewable energy is energy from sources that: 1. were once living organisms 2. are constantly being formed 3. humans can manufacture 4. will take years to deplete
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Which term matches this definition? Devices that isolate or remove the bloodborne pathogens hazard from the workplace
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Which of the following statements is true? The Challenger Deep was explored by Picard and Walsh. Data from Jason-1 will help scientists study deep sea life. Salinity refers to the amount of salt (NaCl
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John and Pat are identical twins with identical DNA. John works in a movie theater, and Pat works as a lifeguard. They have very different skin pigmentation. Which is the best explanation of the diffe
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A farmer grows crops with an average height of 5ft he breeds his tallest plants which are 8ft tall they produce offspring that have an average height of 5.25 ft Southern red ability in this case is
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In cellular respiration, stored chemical energy in a. ATP and NADH is converted to carbohydrate molecules b. ATP molecules is used to build NADH molecule d. organic molecules is converted to ATP mo
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Which of the following best summarizes the change in the sea floor over time? The sea floor is constantly shrinking as plates dive under the continental land masses. The sea floor is constantly expand
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Ron examined several fossils to date Earth events from 443 million years ago to 206 million years ago. Which of these charts best records the information obtained by Ron?
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Growth patterns on organisms have been found in which of the following? Select all that apply. tree rings fish scales starfish clam shells
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Taking a patient’s reproductive health history requires that the medical assistant demonstrate sensitivity and professionalism. What are some specific steps you can take to exercise sensitivity and
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Your friend wants to lose weight around the belly. Your friend is planning to do crunches every day to lose the weight, but is not planning on doing any other exercises. Do you think this strategy wil
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Bacteria is the precursor to various organisms which appeared on Earth. Which of these statements is correct about bacteria? Select one: a. Algae evolved to give rise to bacteria. b. Fern-like plants
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Excluding your immediate family members, are you more likely to be genetically like someone who looks like you or someone who does not
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An ecosystem is self-sustaining as long as organisms have sufficient quantities of energy, oxygen, minerals, and water. when organisms die, some of these minerals are recycled back to plants in the ec
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The enzymatic hydrolysis of sucrose by the enzyme sucrase will result in the formation of its two monosaccharide components, glucose and fructose, as seen in the model above. The activity of an enzyme
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Oil and natural gas result from: 1.)the decay of plants that lived in grasslands hundreds of years ago. 2.) the burning of high-sulfur, low-grade uranium. 3.) the migration of complex carbohydrate
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Which of the following best describes the following characteristics: water storage, clean energy, and flood prevention? hurry I'm on a timed test
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A student in your class suggests that when most people watch exciting sporting events on television , their pulse rates increase . what is a reliable way to find out if this statement is correct ?
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A biologist examines a series of cells and a counts 160 cells in interphase, 20 cells in prophase, 6 in prometaphase , 2 in metaphase, 7 cells in anaphase and 5 cells in telophase. if the complete cel
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Each enzyme has an optimum pH at which it attains is maximum activity. That optimum pH varies for each enzyme. The optimum range for pepsin is 1.5 - 2; for stomach lipase it is 4.0-5.0. Any change bel
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Name the trophic levels in an ecosystem and explain how energy moves through the trophic levels. Use the terms food chain and food web in your response.
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Nitrogen-fixing bacteria live in protective nodules (bumps) on the roots of some plants. These bacteria are able to convert gaseous nitrogen from the air into a form of nitrogen that the plants can us
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Before free oxygen gas became abundant in the oceans and atmosphere it reacted with a metal and produced what type of formations
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The graph below shows ocean data relating to climate change. Explain why both the atmospheric and seawater carbon dioxide levels are rising simultaneously.
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Suppose a group of bobcats that normally live and hunt in the tops of mountains, start hunting prey at the base of the mountain and move into the valley below. Which of the following will most likely
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The explosion of BP Oil's Deepwater Horizon oil rig off the shore of Louisiana in 2010 led to the worst oil spill in the history of the United States. Which of these represents a biased viewpoint conc
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Sudden strenuous exercise for sedentary individuals increases the possibility of injury. a. True b. False
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Katy was diagnosed with bi-polar disorder in her early twenties. she has currently started experiencing delusions. what is the most appropriate diagnosis?
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Phytoplankton use sunlight to gain energy through photosynthesis. As a result of the Law of Conservation of Energy, phytoplankton cannot gain more energy than it consumes. A closed system consisting o
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Cyanobacteria are important bacteria due to their abilities to provide food for other organisms, fix nitrogen, and
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Make a prediction of the differences in cell division rate between unicellular algae in a sunny, nutrient-rich pond and others in a nutrient-poor pond. How could you check your prediction?
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This graph shows the relationship of BMR per kilogram of body mass to the total body mass of various mammals. Compare the metabolic rates per kilogram of a rat and a harvest mouse. Use this informatio
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Compare and contrast food chain and food webs. Provide one similarity , one difference , and examples to support their differences.
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What is the answer to: (03.07 MC) Recently, some crop plants were genetically modified to be immune to the effects of weed killers. Which of the environmental concerns should be considered before plan
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Stems ___ ? A. can be used for asexual reproduction.B. absorb water and minerals from soilC. are the main are for photosynthesis.D. contain the reproductive organs of follower.
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Xavier drew a diagram to compare the roles of oxygen and hydrogen in photosynthesis. Which label belongs in the area marked X? Enters plant as a part of water Combines with carbon dioxide Is released
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PLEASE AWNSER I WILL GIVE 20 POINTS AND BRAINLEST What are the reactants of photosynthesis? carbon dioxide and hydrogen hydrogen, oxygen, and water light energy, water, and carbon dioxide oxygen and g
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Two normal parents have five children, four normal and one albino. what are the most likely genotypes of the parents?
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What fallacy does the government sometimes use as justification to use an expansionary fiscal policy
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If a a woman who is not a carrier for colorblindness has a son with a man who does have x-linked colorblindness, the son will likely ______
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When amphetamines were first developed, they were used primarily to treat asthma depression alcohol addiction heroin addiction?
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A cell in the leaf of a corn plant contains more chloroplasts then a cell in the stem of a corn plant. Based on this observation, it can be inferred that, when compared to the cell in the stem, the ce
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If a plant is kept under green colored light for an extended period of time, what willl happen to the plants food production
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Wildlife biologists inspect 153 deer taken by hunters and find 32 of them carrying ticks that test positive for lyme disease. what concerns do you have about this sample?
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You are working up a stool culture. on macconkey agar you see many bright pink colonies and many clear colonies. which colonies are potential pathogens that require further testing
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